--- title: Ice has a thin slippery layer on top, so skates hardly grip, but sci… — Friction: the grip that stops and helps · tree and pragmatics description: Ice has a thin slippery layer on top, so skates hardly grip, but scientists still argue about exactly why ice is so slippery. Who acts: Ice, skates, scientists. A sentence of the lesson «Friction: the grip that stops and helps» of the physics course of Mova's primary school with its dependency tree --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/physics/6-friction-the-grip/6/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Physics](https://md.mova.elamur.ai/free/en/corpora/school/physics/) / [Friction: the grip that stops and helps](https://md.mova.elamur.ai/free/en/corpora/school/physics/6-friction-the-grip/) / 6 # Friction: the grip that stops and helps, sentence 6 Ice has a thin slippery layer on top, so skates hardly grip, but scientists still argue about exactly why ice is so slippery. **Who acts:** Ice, skates, scientists · **What happens:** have, grip, argue, be · **To what, where:** thin slippery layer, top This is a sentence of the lesson «Friction: the grip that stops and helps» of the physics course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (Ice, skates, scientists), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:physics:006-friction-the-grip.lesson:6 # text = Ice has a thin slippery layer on top, so skates hardly grip, but scientists still argue about exactly why ice is so slippery. # source = school lesson (ours) # course = physics # lesson = 006-friction-the-grip.lesson # annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R5-strong ×1, R7-rel-agree ×1, R8-pos-agree ×1 1 Ice ice NOUN NN Number=Sing 2 nsubj _ Agree=R8-pos-agree|Haiku=2:nsubj|HaikuPos=PROPN:NNP:Number=Sing 2 has have VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 a a DET DT Definite=Ind|PronType=Art 6 det _ _ 4 thin thin ADJ JJ Degree=Pos 6 amod _ _ 5 slippery slippery ADJ JJ Degree=Pos 6 amod _ _ 6 layer layer NOUN NN Number=Sing 2 obj _ _ 7 on on ADP IN _ 8 case _ _ 8 top top NOUN NN Number=Sing 2 obl _ Agree=R5-strong|Haiku=6:nmod 9 , , PUNCT , _ 11 punct _ _ 10 so so ADV RB _ 13 advmod _ _ 11 skates skate NOUN NNS Number=Plur 13 nsubj _ _ 12 hardly hardly ADV RB _ 13 advmod _ _ 13 grip grip VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 2 parataxis _ _ 14 , , PUNCT , _ 18 punct _ _ 15 but but CCONJ CC _ 18 cc _ _ 16 scientists scientist NOUN NNS Number=Plur 18 nsubj _ _ 17 still still ADV RB _ 18 advmod _ _ 18 argue argue VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 2 conj _ Agree=R7-rel-agree|Haiku=2:parataxis 19 about about ADP IN _ 25 case _ _ 20 exactly exactly ADV RB _ 25 advmod _ _ 21 why why ADV WRB PronType=Int 25 advmod _ _ 22 ice ice NOUN NN Number=Sing 25 nsubj _ _ 23 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 25 cop _ _ 24 so so ADV RB _ 25 advmod _ _ 25 slippery slippery ADJ JJ Degree=Pos 18 ccomp _ _ 26 . . PUNCT . _ 2 punct _ _ ``` ## Pragmatics {#pragmatics} No stored speech act for this sentence. | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **have** | present | Ice | a thin slippery layer | | top | | | vn birth-28.2-1 «NP V NP»: agent=Agent layer=Patient | | 2 | **grip** | present | skates | | | | | hardly *property* | vn touch-20-1 «NP V NP»: agent=Agent | | 3 | **argue** *speech: disagree* | present | scientists | | | | still | | vn correspond-36.1-1 «NP V»: agent=Agent | | 4 | **is** | present | ice | | | | | exactly, slippery *property* | tree rules | One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree. **Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)**, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, `mova-school-agreed-en.conllu`) is part. The lessons were written for Mova's primary school. Sentence `school:physics:006-friction-the-grip.lesson:6`. **The tree:** Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R5-strong ×1, R7-rel-agree ×1, R8-pos-agree ×1. **The frames** are read from the tree by Mova's frames reader (`prag`) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence. See the [release 0.4](https://md.mova.elamur.ai/free/en/releases/0.4/). - ← previous: [Friction: the grip that stops and helps, 5](https://md.mova.elamur.ai/free/en/corpora/school/physics/6-friction-the-grip/5/) - next →: [Friction: the grip that stops and helps, 7](https://md.mova.elamur.ai/free/en/corpora/school/physics/6-friction-the-grip/7/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/physics/6-friction-the-grip/)